The Sky Flower (Thunbergia grandiflora), also called Bengal Trumpet or Bengal clock vine, is a tropical climber, liked as an ornamental plant, but in some tropical countries also considered as an invasive species. The Sky Flower (Thunbergia grandiflora) can reach a length or width of about 10 meters and is native to Bangladesh. Nowadys the tropical vine is widely spread throughout South East Asia, Australia and Hawaii. The Bengal Trumpet has to be trimmed regularly to stop overrunning other plants and overwhelmimg them.
The sky-blue flowers, of Thunbergia grandiflora var. alba pure white flowers, get a size of about 6 cm.

© Orchids Flowers.com
Image: Sky Flower (Thunbergia grandiflora)
© Orchids Flowers.com
Image: Sky Flower (Thunbergia grandiflora)

Angraecum Lemförde White Beauty
Passionflower Passiflora Lady Margaret
Lady Slipper Orchid Paphiopedilum Recovery
Bulbophyllum levanae Ames 1915
Spider Orchid Hybrid Brassidium Kenneth Bivin
Maypop Passionflower (Passiflora incarnata)
Lady Slipper Orchid Paphiopedilum Vanguard
Curcuma Emerald Chocozebra Thai Tulip
Waterlily Hybrid Nymphaea King of Siam
Stanhopea tricornis, Gerlachia tricornis
Orchid Hybrid Bulbophyllum Meen Garuda
Coral Vine (Antigonon leptopus)
Katmon (Dillenia philippinensis)
Lipstick Plant (Aeschynanthus radicans)

Dendrobium fytchianum Bateman 1864
Black Orchid Vandachostylis Colmarie Black Beauty
Oncidium cebolleta (Jacq.) Sw. 1800
Cats Claw Creeper (Macfadyena unguis-cati)